diff options
Diffstat (limited to 'drivers/mtd/devices/mtd_dataflash.c')
| -rw-r--r-- | drivers/mtd/devices/mtd_dataflash.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index a39b3b6..99d3a03 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -147,7 +147,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr) { struct dataflash *priv = (struct dataflash *)mtd->priv; struct spi_device *spi = priv->spi; - struct spi_transfer x[1] = { { .tx_dma = 0, }, }; + struct spi_transfer x = { .tx_dma = 0, }; struct spi_message msg; unsigned blocksize = priv->page_size << 3; u8 *command; @@ -162,10 +162,11 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr) || (instr->addr % priv->page_size) != 0) return -EINVAL; - x[0].tx_buf = command = priv->command; - x[0].len = 4; - msg.transfers = x; - msg.n_transfer = 1; + spi_message_init(&msg); + + x.tx_buf = command = priv->command; + x.len = 4; + spi_message_add_tail(&x, &msg); down(&priv->lock); while (instr->len > 0) { @@ -256,12 +257,15 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len, DEBUG(MTD_DEBUG_LEVEL3, "READ: (%x) %x %x %x\n", command[0], command[1], command[2], command[3]); + spi_message_init(&msg); + x[0].tx_buf = command; x[0].len = 8; + spi_message_add_tail(&x[0], &msg); + x[1].rx_buf = buf; x[1].len = len; - msg.transfers = x; - msg.n_transfer = 2; + spi_message_add_tail(&x[1], &msg); down(&priv->lock); @@ -320,9 +324,11 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, if ((to + len) > mtd->size) return -EINVAL; + spi_message_init(&msg); + x[0].tx_buf = command = priv->command; x[0].len = 4; - msg.transfers = x; + spi_message_add_tail(&x[0], &msg); pageaddr = ((unsigned)to / priv->page_size); offset = ((unsigned)to % priv->page_size); @@ -364,7 +370,6 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, DEBUG(MTD_DEBUG_LEVEL3, "TRANSFER: (%x) %x %x %x\n", command[0], command[1], command[2], command[3]); - msg.n_transfer = 1; status = spi_sync(spi, &msg); if (status < 0) DEBUG(MTD_DEBUG_LEVEL1, "%s: xfer %u -> %d \n", @@ -385,14 +390,16 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, x[1].tx_buf = writebuf; x[1].len = writelen; - msg.n_transfer = 2; + spi_message_add_tail(x + 1, &msg); status = spi_sync(spi, &msg); + spi_transfer_del(x + 1); if (status < 0) DEBUG(MTD_DEBUG_LEVEL1, "%s: pgm %u/%u -> %d \n", spi->dev.bus_id, addr, writelen, status); (void) dataflash_waitready(priv->spi); + #ifdef CONFIG_DATAFLASH_WRITE_VERIFY /* (3) Compare to Buffer1 */ @@ -405,7 +412,6 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, DEBUG(MTD_DEBUG_LEVEL3, "COMPARE: (%x) %x %x %x\n", command[0], command[1], command[2], command[3]); - msg.n_transfer = 1; status = spi_sync(spi, &msg); if (status < 0) DEBUG(MTD_DEBUG_LEVEL1, "%s: compare %u -> %d \n", |
